User Guide

User’s Manual - Mascot ST Water Heater
Page 7
LAARS Heating Systems
Page 42
5.3 Operating Mode
SECTION 5. Control Display and Operation
Operating Mode
After the Power is turned on, and/or the Control Display is turned on , the Control Display
will go through a ‘Start Up’ checklist and brie y show a sequence of diagnostic codes before
entering into the ‘Operating Mode. It will then display the following information.
Indicate Example
Current DHW temperature
125°F
If the fl ow is present
S24
If fl ame detected
S37
Temperature sign Celsius or Fahrenheit letter
°C or °F
Communication state indicate
°C or °F
Mascot ST Tankless Water Heater
Page 43
5.4 Status Display Mode
SECTION 5. Control Display and Operation
To change any of the above listed Status Parameters,
Press and Hold Button B to get into the Status Display Mode.
Rotate Dial E until you  nd the Parameter that you wish to change. Tap Dial E to enter that Parameter.
Adjust to the setting that you require and then press (tap) Dial E to save and to Exit.
Index Parameter Description
A: Li or A: GA Flow 1 Current  ow value(Li: L/m, GA: GPM)
b: Fr Fan rpm Current fan rpm value
C: Lc Lock Mode Lock mode is used(On) or unused(oFF)
d: OP OP Temperature Current Operating Temperature
E: dH DHW temperature Current DHW temperature
F: Eh Exhaust Temperature Current Exhaust temperature
h: In Inlet Temperature Current Inlet Temperature
L:rt Running Time Display Running Time
L:rt
1: PH Power Supply Time Power Supply Time: 100 hour increments
2: rh Burner Operating Time
Burner Operating Time: 1 hour incre-
ments
3: rH Burner Operating Time
Burner Operating Time: 1,000 hour
increments
4: It Ignition Attempts Number
Ignition Attempts Number: 10 times unit
displayed
5: IH Ignition Attempts Number
Ignition Attempts Number: 10,000 times
unit displayed
J: AG AGM Position AGM Parameter calibration